Pretoria / Tswane, SA: Jacaranda city where the streets are lined with more than 15000 fully grown jacaranda trees that turn the streets of the older parts of the city purple in October.

Pretoria / Tswane, SA: Jacaranda city where the streets are lined with more than 15000 fully grown jacaranda trees that turn the streets of the older parts of the city purple in October.

South African Astronomical Observatory, Sutherland.

Top 10 Travel Destinations for An Astronomy Geek

Discover South African Astronomical Observatory in Cape Town, South Africa: This historic observatory was established to keep shipwrecks from littering the Cape of Good Hope.

Invented in Africa these concrete giants, called dolosse, singular dolos, disperse the energy of waves, to protect human settlements from the angry sea.They were developed in East London, a port city in South Africa, in 1963 and are found in millions around the world.

Dolosse, the large concrete structures used internationally to protect harbours, seawalls and coastlines around the world, was invented by South African, Eric Merrifield.

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