In 1787, a group of delegates met at this very spot to drink, be merry, and ratify the Constitution of the United States.

This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

Once America's tallest structure, now a Baltimore landmark.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

The grand marquee of this abandoned Hawaiian theater remembers the building's elegant past.

An ode to one of the first concerts broadcast via satellite.

A historic beacon built in the aftermath of the worst maritime disaster on the Great Lakes.

Roses and other fascinating flora fill this garden built to commemorate Britain's immortal Bard.

The oldest working mechanical clock in the world.

The fantastic charm of England's oldest botanical garden has made it a place of writerly inspiration for centuries.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

Now a memorial to merchant sailors and Titanic victims, this medieval church was destroyed by bombing raids in 1940.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

A castle built by an eccentric medieval enthusiast in rural Ohio.

An abandoned munitions factory with a shot tower continues to wage war on the surrounding environment.

Rare recess caves fill this unbelievably beautiful Ohio park.

Just outside the Ohio Supreme Court sits a testament to justice.

An unassuming 13-acre park is home to over 12,000 roses.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

The magic's in the hole!

A half-mile-long stretch of medieval forts built after a devastating pirate attack persists amid the modern port city.