The Da Vinci Science Center is an interactive science center with hands-on exhibits to entertain and inspire families with children ages 12 years and under. These exhibits and programs presents science, technology, engineering, and mathematics (STEM) subjects to kids informally, playfully, and in ways that relate to their popular interests. 

While the indoor exhibits are temporarily closed, the outdoor, socially-distanced, contact-free exhibition, BRICKLIVE Ocean, has opened on the grounds of The Da Vinci Science Center. Timed tickets must be purchased in advance. 

Get your thrills on at Dorney Park! This fun park is home to eight roller coaster, including Hydra: the Revenge, a floorless coaster; Talon: Grip of Fear, one of the Northeast's tallest inverted coasters; and Steel Force, the longest steel coaster on the East Coast. Children and parents will love the Planet Snoopy rides and attractions, inspired by the "Peanuts" comic strip. 

Dorney Park is currently open Thursdays through Sundays. Reservations are required for Single Day ticket holders. Some rides and attractions may be limited due to current operating restrictions. Wildwater Kingdom is closed for the 2020 season. 

Dubbed the "Niagara of Pennsylvania, the Bushkill Falls is a series of eight waterfalls that can be viewed via rustic trails and wooden stairs and bridges over a 2-mile area. The falls' source is the Bushkill Creek, which descends through the Pocono Mountains to the Delaware River. 

Penn's Cave is America's only all-water cavern and farm/nature/wildlife park. Enjoy a 45-minute guided motorboat tour through the cavern, which features amazing limestone formations. Also offered is a guided 90-minute tour of the property's fields, farmland, grazing pastures, and mountain trails. Highlights include bison, bobcats, white-tailed deer, elk, black bears, Texas longhorn cattle, timber wolves, bighorn sheep, a butterfly garden and mountain lion den. 

This 19th-century gristmill was converted into a museum housing a collection of American art and illustration. Works by three generations of Wyeth family are featured, with individual galleries devoted to N.C., Andrew and Jamie Wyeth. The galleries in the restored mill have original beams and pine floors. The museum grounds are beautifully landscaped with native plants and wildflowers. 

Kentuck Knob was designed for Bernadine and I.N. Hagan in 1953 by renowned American architect, Frank Lloyd Wright. Designed on the hexagonal module, Kentuck Knob is a one-story Usonian house–a signature design of Wright. Both dramatic and serene, the house is situated just below the crest of a hill and appears almost part of the mountain itself. 

The grounds include woodland trails with contemporary sculptures. A former greenhouse now serves as a visitor center. A guided 40-minute tour takes visitors around the exterior and through the interior of the home. The 90-minute in-depth tour shows visitors into secondary spaces of the home and highlights some of the collections on display. The Woodland Walk self-guiding tour explores the grounds and sculptures, providing views of the exterior of the house. 

Fort Necessity National Battlefield surrounds a reconstruction of the fort built by George Washington in 1754. The Battle of Fort Necessity, in which Washington led the Colonial Virginia Regiment alongside the British regulars from South Carolina against a strong force of French and Native Americans, occurred at the site on July 3, 1754. This was Washington's first major event in his military career and it marked the beginning of the French and Indian War. 

Reconstructions of the fort, entrenchments, and earthworks have been erected on their original sites. Picnic facilities are available. A visitor center features exhibits and a 20-minute video presentation. Mount Washington Tavern, on US 40 near the fort, is a restored 19th-century stagecoach inn. 

Gettysburg National Military Park virtually surrounds the town of Gettysburg and comprises of the Gettysburg battlefield, where one of the most important and hotly contested battles of the Civil War was fought on July 1-3, 1863. It was also the bloodiest battle of the war, resulting in 51,000 wounded, captured or killed.

Other notable AAA GEMs located in Gettysburg: Eisenhower National Historic Site; Devil's Den; Eternal Light Peace Memorial; Museum and Visitor Center at Gettysburg National Military Park; and Soldiers' National Cemetery at Gettysburg National Military Park.

The National Civil War Museum is reportedly the only museum in the nation to cover the entire American Civil War from beginning to end. In bringing history to life, the museum includes collections of Union and Confederate artifacts, life-size dioramas, and audiovisual presentations.

Seventeen galleries focus on the magnitude of the human experiences that made up the war. From slavery to camp life, to the turmoil of 19th-century politics, the museum immerses visitors in the Civil War, with an equal emphasis given to both sides of the conflict.

Sitting on Capitol Hill in a 13-acre park, the Capitol covers 2 acres and contains more than 600 rooms. The 272-foot dome, bronze doors, statuary, mural paintings, and stained-glass windows are notable features. The marble grand staircase is designed after the one in the Paris Grand Opera House. Flanking the central entrance are two groups of statuary by the Pennsylvania-born sculptor, George Grey Barnard. Guests can watch proceedings of the House and Senate.

Note: All visitors must pass through metal detectors; all bags and packages will be X-rayed and are subject to hand inspection. The security screening may require a whole-body pat-down.

In the town dubbed as the "Sweetest Place on Earth," Hershey's Chocolate World is the official visitor center of The Hershey Co. A tour explains the chocolate-making process from harvesting cocoa beans to packaging the finished product and includes free samples (sweet!).

For a more involved experience, visitors can head to the Create Your Own Candy Bar area to experience a real factory environment and create and make their own candy bar, including the packaging design.

Other notable AAA GEMs in Hershey: Hersheypark.

This 1891 building was one of the first Carnegie libraries, built with a donation from the philanthropist Andrew Carnegie. The museum chronicles the cause and course of events prior to, during and after the devastating flood of May 31, 1889, and features the 26-minute 1989 Academy Award-winning documentary film, "The Johnstown Flood." 

The Franklin Institute offers three floors of interactive exhibits. SportsZone offers a 40-foot long race challenge, a pitching cage, and other interactive displays; Your Brain explores developments in neuroscience; The Train Factory features a 350-ton moving locomotive; and The Giant Heart a beloved giant walk-through of the human heart.

Devoted to preserving the legacy of the U.S. Constitution and inspiring active citizenship, the National Constitution Center is a museum that features hundreds of interactive exhibits, rare artifacts and films. Signers' Hall is sure to amaze with its 42 life-size bronze sculptures of the nation's founding fathers. Don't miss the stirring 17-minute presentation of "Freedom Rising," a 360-degree theatrical production illustrating important milestones in American history.

Phipps Conservatory and Botanical Gardens was donated to the city in 1893 by industrialist, Henry Phipps. The grounds feature outdoor gardens and a 17-room Victorian glasshouse with exotic and native plants as well as several works of glass sculptures by artist Dale Chihuly, including a chandelier in the welcome center. Some of the conservatory's themed rooms are dedicated to ferns, orchids, palms, and tropical forest plants. The Stove Room showcases plants found in the deep tropics, and it is transformed into a butterfly forest between spring and fall. A Japanese courtyard garden features bonsai. Fountains, streams, and waterfalls are incorporated throughout themed areas. 

This 77-acre zoo is home to 9,000 animals representing 900 species. Animals are featured in naturalistic exhibits, such as a tropical forest, Asian forest, Amazon River, Antarctica, and African savanna. The Kids Kingdom offers the chance to get up-close to sea lions, alpacas, otters, and more.

Exhibits at the Historical Society Museum depict life in York County up to the 20th-century. A reproduction of the original York village square with a one-room cabin, print shop, apothecary, and toy store can be viewed. Decorative arts, folk art, and exhibits about York's role in the Revolutionary and Civil wars are displayed. 

The Agricultural & Industrial Museum highlights the Golden Age of industrial development from south-central Pennsylvania's early years to the present. Exhibits showcase industrial equipment and the history of transportation, including a working three-story gristmill and 72-ton giant A-frame ammonia compressor.

The Fire Museum in the 1903 station showcases more than 200 years of local firefighting with photographs, uniforms, vintage vehicles, and the original fire-horse stalls. 

The Colonial Complex is part of the York County History Center and consists of restored 18th- and 19th-century buildings and a replica of York's colonial courthouse that are seen by a guided tour.