A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

Towering basalt columns, a creation of fire and ice.

A beautiful geyser under environmental threat.

A dilapidated dock tells the story of Titanic's missed arrival.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

A submerged archeological park still holds the wonders of a Roman Sodom.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

A slice of central Asia in the middle of Berlin.

The first declared National Monument in the United States.

The ghostly remains of an accidental sea.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

Hidden beneath the streets of London is a secret subway that only carried mail.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

The seamy, underground secrets of Portland's criminal past.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This massive library holds what was once the largest book collection in the world.