Airbnb for billionaires: Where the world's richest people stay when they travel

Italian Lakes Villa: around $105,847 per week.

The Italian Lakes Villa is located in Tremezzo, Italy near Lake Como.

Its dining room offers stunning views.

A pool in the back yard is surrounded by mountains and the lake.

Mykonos Villa: around $174,349 per week.

This villa is on the Greek island of Mykonos

Lassman noted the popularity of Greek villa rentals.

"The finest villas, and [most] interest in villa rentals at the moment [are] the Greek Islands. [We rent] the top houses on the Greek islands. [We have] the very best on Mykonos," said Lassman.

Lassman also noted the growing popularity of Mykonos: "Although, Mykonos is becoming a little too trendy and exploited." He's been suggesting his clients visit an entirely private island, or the island of Antiparos.

They also book at the Porto Cheli Villa, located in the Peloponnese for around $105,831 per week.

The Ithaca Villa, located in the Ionian Sea near Greece is around $122,010 per week.

Tuscan Villa: around $87,155 per week.

The backyard of the villa is almost as stunning as the front.